Each node indicates the common ancestors of descendants
Unique history (divergence or speciation) based represents key molecular change
Often represented as morphological trait in a fossil-based phylogeny
White Sands formed recently (2,000 years old), and the substrate color of the white gypsum habitat contrasts dramatically with the surrounding Chihuahuan Desert’s dark soils habitat
A very dramatic selection environment leading to concealing coloration for predation avoidance
More gametes are produced than seed the next generation
Random sampling gametes can change the genetic composition of a population over time
Bring a shareable version of your topic selection to class
In small groups, you will present your topic and collect feedback
Groups will also review your writing (length should be ~1/2 page)
If you can’t convince your peers, you wont convince me!
Use your peers wondderful advice to clean up your submission (due at end of day)